133 citations · 388 across the 20 of their papers we have counts for
20 papers
Device-independent quantum key distribution over 100 km with single atoms
Bo-Wei Lu, Chao-Wei Yang, Run-Qi Wang +15
Device-independent quantum key distribution (DI-QKD) is a key application of the quantum internet. We report the realization of DI-QKD between two single-atom nodes linked by 100-k…
A building block of quantum repeaters for scalable quantum networks
Wen-Zhao Liu, Ya-Bin Zhou, Jiu-Peng Chen +26
Quantum networks, integrating quantum communication, quantum metrology, and distributed quantum computing, could provide secure and efficient information transfer, high-resolution…
Genuine Tripartite Strong Coupling in a Superconducting-Spin Hybrid Quantum System
Yingqiu Mao, Han-Yu Ren, Zi-Yi Liu +12
We demonstrate genuine tripartite strong coupling in a solid-state hybrid quantum system comprising a superconducting transmon qubit, a fixed-frequency coplanar-waveguide resonator…
Local unitary equivalence of arbitrary-dimensional multipartite quantum states
Qing Zhou, Yi-Zheng Zhen, Xin-Yu Xu +6
Local unitary equivalence is an important ingredient for quantifying and classifying entanglement. Verifying whether or not two quantum states are local unitary equivalent is a cru…
Bound on annealing performance from stochastic thermodynamics, with application to simulated annealing
Yutong Luo, Yi-Zheng Zhen, Xiangjing Liu +2
Annealing is the process of gradually lowering the temperature of a system to guide it towards its lowest energy states. In an accompanying paper [Luo et al. Phys. Rev. E 108, L052…
General limit to thermodynamic annealing performance
Yutong Luo, Yi-Zheng Zhen, Xiangjing Liu +2
Annealing has proven highly successful in finding minima in a cost landscape. Yet, depending on the landscape, systems often converge towards local minima rather than global ones.…
Device-Independent Quantum Key Distribution Based on the Mermin-Peres Magic Square Game
Yi-Zheng Zhen, Yingqiu Mao, Yu-Zhe Zhang +2
Device-independent quantum key distribution (DIQKD) is information-theoretically secure against adversaries who possess a scalable quantum computer and who have supplied malicious…
Experimental Demonstration of Quantum Pseudotelepathy
Jia-Min Xu, Yi-Zheng Zhen, Yu-Xiang Yang +5
Quantum pseudotelepathy is a strong form of nonlocality. Different from the conventional non-local games where quantum strategies win statistically, e.g., the Clauser-Horne-Shimony…
Robust self-testing of multipartite GHZ-state measurements in quantum networks
Qing Zhou, Xin-Yu Xu, Shuai Zhao +4
Self-testing is a device-independent examination of quantum devices based on correlations of observed statistics. Motivated by elegant progresses on self-testing strategies for mea…
Inverse linear versus exponential scaling of work penalty in finite-time bit reset
Yi-Zheng Zhen, Dario Egloff, Kavan Modi +1
Bit reset is a basic operation in irreversible computing. This costs work and dissipates energy in the computer, creating a limit on speeds and energy efficiency of future irrevers…
Photonic verification of device-independent quantum key distribution against collective attacks
Wen-Zhao Liu, Yu-Zhe Zhang, Yi-Zheng Zhen +6
In this paper, we employ theoretical and experimental efforts and realize a proof-of-principle verification of device-independent QKD based on the photonic setup. On the theoretica…
Universal Bound on Energy Cost of Bit Reset in Finite Time
Yi-Zheng Zhen, Dario Egloff, Kavan Modi +1
We consider how the energy cost of bit reset scales with the time duration of the protocol. Bit reset necessarily takes place in finite time, where there is an extra penalty on top…
Open-destination measurement-device-independent quantum key distribution network
Wen-Fei Cao, Yi-Zheng Zhen, Yu-Lin Zheng +6
Quantum key distribution (QKD) networks hold promise for sharing secure randomness over multi-partities. Most existing QKD network schemes and demonstrations are based on trusted r…
Phase-Matching Quantum Cryptographic Conferencing
Shuai Zhao, Pei Zeng, Wen-Fei Cao +6
Quantum cryptographic conferencing (QCC) holds promise for distributing information-theoretic secure keys among multiple users over long distance. Limited by the fragility of Green…
Unified Approach to Witness Nonentanglement-Breaking Quantum Channels
Yi-Zheng Zhen, Yingqiu Mao, Kai Chen +2
The ability of quantum devices to preserve or distribute entanglement is essential in employing quantum technologies. Such ability is described and guaranteed by the nonentanglemen…
An Experimentally Verified Approach to non-Entanglement-Breaking Channel Certification
Yingqiu Mao, Yi-Zheng Zhen, Hui Liu +14
Ensuring the non-entanglement-breaking (non-EB) property of quantum channels is crucial for the effective distribution and storage of quantum states. However, a practical method fo…
One-sided Measurement-Device-Independent Quantum Key Distribution
Wen-Fei Cao, Yi-Zheng Zhen, Yu-Lin Zheng +4
Measurement-device-independent quantum key distribution (MDI-QKD) protocol was proposed to remove all the detector side channel attacks, while its security relies on the trusted en…
Qudit hypergraph states and their properties
Fei-Lei Xiong, Yi-Zheng Zhen, Wen-Fei Cao +2
Hypergraph states, a generalization of graph states, constitute a large class of quantum states with intriguing non-local properties and have promising applications in quantum info…
Non-local games and optimal steering at the boundary of the quantum set
Yi-Zheng Zhen, Koon Tong Goh, Yu-Lin Zheng +4
The boundary between classical and quantum correlations is well characterised by linear constraints called Bell inequalities. It is much harder to characterise the boundary of the…
Highly Efficient Quantum Key Distribution Immune to All Detector Attacks
Wen-Fei Cao, Yi-Zheng Zhen, Yu-Lin Zheng +4
Vulnerabilities and imperfections of single-photon detectors have been shown to compromise security for quantum key distribution (QKD). The measurement-device-independent QKD (MDI-…